22193239 has 2 divisors, whose sum is σ = 22193240. Its totient is φ = 22193238.

The previous prime is 22193231. The next prime is 22193243. The reversal of 22193239 is 93239122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22193239 - 2³ = 22193231 is a prime.

It is a super-2 number, since 2×22193239² = 985079714622242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22193239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22193231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11096619 + 11096620.

It is an arithmetic number, because the mean of its divisors is an integer number (11096620).

Almost surely, 2^22193239 is an apocalyptic number.

22193239 is a deficient number, since it is larger than the sum of its proper divisors (1).

22193239 is an equidigital number, since it uses as much as digits as its factorization.

22193239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 31.

The square root of 22193239 is about 4710.9700699537. The cubic root of 22193239 is about 281.0219416089.

The spelling of 22193239 in words is "twenty-two million, one hundred ninety-three thousand, two hundred thirty-nine".